Specifications
Specifications
-
Wattage
24W/bulb(max) -
Lumens
2,400LM/bulb(max) -
Waterproof Rating
IP67
Warranty & Return
Warranty & Return
2025 Best Can-Bus Decoding Solution for 3157 LED Turn Signal Lights
Step into 2025 with the all-new Lasfit D Series 3157 LED turn signal lights, engineered for superior decoding, smarter amber light control, and enhanced durability. Designed to eliminate dashboard error codes, clearly separate low/high brightness, and withstand long-term use with a built-in MINI fan, the D Series is the ultimate plug-and-play upgrade for your rear lighting system.
Important Notice: This product is currently only compatible with the 2019–2024 Ram 1500 classic and vehciels with CK socket. If you need 3157 LED turn signal bulbs for other vehicles, please choose the T3-3157A and T3-3157A-CK instead.
The Key Features of D-3157A 3157 Turn Signal Light Bulb

Canbus Decoding – Built to Prevent Dashboard Errors
The D Series 3157 LED turn signal bulbs use a refined power draw system (24W) that closely mimics halogen output. This upgrade dramatically reduces the risk of error codes caused by mismatched power detection between halogen and aftermarket LED bulbs.

Intelligent Dual-Brightness Design 3157 turn signal light bulb
Each bulb of the D Series features dual chipsets—3x 1860 and 8x 3570 amber LEDs—to deliver distinct brightness levels. Max output: 24W / 2400LM per bulb. Stay visible, safe, and stylish on the road.

Built-in MINI Fan & Smart Temperature Control
In addition to aviation-grade aluminum housing and thermal IC protection, the D Series 3157 LED turn signal light bulb is equipped with a silent internal MINI fan. This ensures efficient heat dissipation and prevents brightness degradation during extended use.
Top-Mounted LEDs + Clear Lens – Pure & Soft 360° Illumination
Unlike traditional side-emitting bulbs, Lasfit D Series LED turn siganl light adopts a top-mounted LED design with a clear lens for a cleaner, softer, and more uniform glow—no more harsh or scattered light.
True Plug & Play – Non-Polarity Design
No more worrying about CK vs non-CK sockets. The D Series LED bulb features a non-polarity structure and halogen-like size, making it a breeze to install in most vehicles without rewiring or error issues.
Product Spec of D-3157A LED Turn Signal Lights
- Product: D-3157A
- Package Includes: 2 Bulbs
- Fit Size: 3156 / 3157 / 3056 / 3057 / 3057A / 3457 / 3457A / 4057 / 4157 / 4157NA
- Installation Position: Turn Signal Light
- Wattage: 24W/bulb(max)
- Lumens: 2400LM/bulb(max)
- Color: Bright Amber
FAQs: Everything You Need to Know About D-3157A LED Turn Signal Lights
Q1: What are the advantages of the D-3157A LED bulbs?
- Higher and more stable power output effectively prevents error codes or hyper flash issues.
- Dual-brightness LED design offers distinct light levels for low/high brightness.
- Built-in silent fan provides efficient cooling for improved performance and longevity.
- Top-mounted LED with lens delivers a softer, 360° glow with no harsh hotspots.
Q2: What vehicles are the D-3157A LED bulbs compatible with?
A2: The D-3157A LED bulbs are currently designed to fit the 2019–2024 Ram 1500 Classic and the vehicles with CK socket. Compatibility with other vehicles is still being tested, and more supported models will be added soon. Stay tuned for updates!